As I said, he may not be up to the expectations of the Forum. Still, it is important to note - especially given the choice of different balls for cannister rounds - that his concern includes the "bouncing" of the selected balls as well as having a focus on casualty-inducing hits (for example, if memory serves, if a cannister ball penetrates the wooden screen it is a hit, yet if it only sticks in the wood without penetration he counts only a fraction - one such hit for each ball so stuck).
I can not "see" any of the Google editions; this said, most of the tables are folded so even if the work in general can be seen few tables shall be legibly presented.
Good luck. - R